|x|= 7/5

Lösung

∣ x ∣ = \frac{7}{5}

x = - \frac{7}{5} or x = \frac{7}{5}

Dezimale

x = - 1.4, x = 1.4

Schritte zur Lösung

∣ x ∣ = \frac{7}{5}

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

x = - \frac{7}{5} or x = \frac{7}{5}

x^{2} + 2 x - 8 \geq 0

x - 9 = 8 (2 x + 3) - 18

s im pl i f y \frac{12 !}{( 12 - 6 ) ! 6 !}

4 x^{2} + 15 x - 54 = 0

2 x^{2} - 4 x - 30 = 0